Griffo thanks for the input mate. I know all that, I work on aircraft for a
living.
I didnt build the plane unfortunately. If I had it would have had the drain
valves. Having had the tank outlets out recently i'm in no hurry to revisit
that nightmare. However if there is an alternative to Mod 33 then that may be
an option. The thing has been flying for 20 odd years without them. The mod is
"optional" if your running the thing on Avgas and mandatory (in the UK) if using
mogas! Never came across an aircraft without drains before.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=501836#501836
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